Re: Aoyue 738 4 in 1 solder station power board
I think i remembered what i did now too
I couldnt get the element out of the housing so i pulled on the wire & thermo with a pair of pliers as i was sure the heating element had died
If any of that helps
Cheers
How do i check the mcu is still alive
mentholflash
Member
Last Activity: 11-25-2024, 01:22 AM
Joined: 03-27-2013
Location: Albany
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Re: Aoyue 738 4 in 1 solder station power board
It was this 1
[ATTACH]307478[/ATTACH]
The display is the five pin header @ the Atmel
CheersRe: Aoyue 738 4 in 1 solder station power board
It was this 1
[ATTACH]307478[/ATTACH]
The display is the five pin header @ the Atmel
Cheers...Last edited by mentholflash; 08-07-2023, 08:06 PM.Leave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
And 1 of the big resistors the 2watt gets really hotLeave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
Hi mate
I do get5v at the atmel vcc and a couple of other legs
I get 5v going to the front panel
What shall i try next
cheersLeave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
The other parts will need sourcing from internet i thinkLast edited by mentholflash; 08-04-2023, 04:56 AM.Leave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
Hi all
today i replaced the voltage regulator i get 5 volts from the output
Still no display
Any ideas
CheersLeave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
Dont know what happened with the attachment...Leave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
[ATTACH]306876[/ATTACH]
[ATTACH]306877[/ATTACH]
I have cleaned up and retouched solder but i think looking at it i bridged 3 connections by atmel 11 12
I couldnt get to the regulator or the atmel to measure it's at the bottom very tight but ile have another go tomorrow.
I i did put my finger on all the heatsinks and they didn't feel hot.
but it wasn't on for long thou but all values given were high values they all went up and down to 1.3v for equally as long
cheersRe:Leave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
I measured the voltage while powered from five pin header by the large Atmel from left hand pin of left hand resistor
from left to right on power board
1 2.129v
2 2.883v
3 2.137v
4 2.095v
5 2.047v
front pannel 5 pin header opposite right to left
1 2.128v
2 2.812v
3 2.133v
4 2.101v
5 2.099v
if any of that means anything
but it does mean theres power to the front board so why no disply
has the front board been hit too
Thanks...Leave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
hey mate
i put a 5 watt in there all i could get in the middle of rural Western AustraliaLeave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
Hi mate
Not quite sure where the 5v circuit starts and ends
was going to see if the front panel gets any power by testing the plug cant realy test on the board in situe
Where would the best ground point to test from Com
Thanks for all your timeLeave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
[ATTACH]306660[/ATTACH]
Ok
I have a new problem the board is powered but no display and no heat
But its on and trying
can anyone help further
ThanksRe: Aoyue 738 4 in 1 solder station power board
[ATTACH]306660[/ATTACH]
Ok
I have a new problem the board is powered but no display and no heat
But its on and trying
can anyone help further
Thanks...Leave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
Hi mate
It's 22x8 1.2ohm 5-7w
some of the ones i looked at were 50mm
cheers mateLeave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
Hi all
polished up the resistor it is infact 1.2Ω on the calculator
brown red gold gold
What would my alternatives be
cheersLeave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
Ok
The resistor gives no measurements
The ba12 -600b in resistence mode pin 1 to 2 o.l
pin 1 to 3 .028 beep
ohms 1 to 2 o.l pin 1 to 3 43.9ohms
As to the resistor being there i think it shows great forsite to know that some idiot is gonna pull out a heating element while plugged in
as for the 1.2 it was suggested earlier
it could mean 1.2 jigawatts
so not sure but quite hard to get the right size and wattage
Cheers for your helpLeave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
Hi
Thanks so much for all the help
redwire what do you think i should replace the resistor with?
And do i need to remove from the circuit to test
it is a ST bta12600b then c3 over left leg and 06 over right
I cut the resistor then read the triac and across outside pins it shows dead short
cant seem to get the screw out of it thou
Thanks againLeave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
Hot air
cheersLeave a comment:
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Re: Lifted trace, how to glue back down?
It is Heatproof epoxy i think. I was told to mix ceramic dust and normal epoxy together and form it yourself but i didnt think this would work
[url]https://www.circuitrework.com/guides/4-7-2.html[/url]
[url]https://www.intertronics.co.uk/product/crc201-1402-land-repair-kit/[/url]
[url]https://www.ebay.com.au/itm/354915632527?chn=ps&_ul=AU&_trkparms=ispr%3D1&amdata=enc%3A1mgMS6Zs_TcepftUbcJnjsg23&norover=1&mkevt=1&mkrid=705-139619-5960-0&mkcid=2&mkscid=101&itemid=3...Leave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
Hi mate
do you know what wattage that ressistor will be to add to my shopping list
And yes was very scary
shat myself
the bang seemed to happen in my hands and the smoke came from the unit utter confusion
haha...Leave a comment:
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Re: Aoyue 738 4 in 1 solder station power board
start by explaining which connectors are for the element and the power input.
did somebody take a grinder to the chip numbers or is that paint?[/QUOTE]
Hi mate thanks for the reply yes somebody took a grinder to the ic's on the power board but not on the other board.Dont know why?
The main fuse is untouched.
I did post on another forum i am a member of.
just hoping somebody can tell me what to measure and what that means and hoping it hasn't touched the other board.
thanks for your...Last edited by mentholflash; 07-28-2023, 01:58 AM.Leave a comment:
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